2015
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
2947799 |
2432 |
- |
2436 |
= |
-4 |
* |
(19 |
/ |
127) |
= |
-0.5984252 |
4 |
2947802 |
2457 |
- |
2485 |
= |
-28 |
* |
(24 |
/ |
127) |
= |
-5.29133856 |
5 |
2947803 |
2501 |
- |
2528 |
= |
-27 |
* |
(21 |
/ |
127) |
= |
-4.46456691 |
6 |
2947806 |
2504 |
- |
2552 |
= |
-48 |
* |
(24 |
/ |
127) |
= |
-9.0708661 |
7 |
2947807 |
2555 |
- |
2567 |
= |
-12 |
* |
(21 |
/ |
127) |
= |
-1.98425196 |
8 |
2947810 |
2580 |
- |
2586 |
= |
-6 |
* |
(18 |
/ |
127) |
= |
-0.8503937 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Paradise Elementary
|
-22 |
2016
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
90208 |
2428 |
- |
2436 |
= |
-8 |
* |
(24 |
/ |
140) |
= |
-1.37142857 |
4 |
90209 |
2474 |
- |
2485 |
= |
-11 |
* |
(24 |
/ |
140) |
= |
-1.88571428 |
5 |
90211 |
2498 |
- |
2528 |
= |
-30 |
* |
(27 |
/ |
140) |
= |
-5.78571426 |
6 |
90213 |
2504 |
- |
2552 |
= |
-48 |
* |
(23 |
/ |
140) |
= |
-7.88571427 |
7 |
90215 |
2547 |
- |
2567 |
= |
-20 |
* |
(19 |
/ |
140) |
= |
-2.7142857 |
8 |
90217 |
2570 |
- |
2586 |
= |
-16 |
* |
(23 |
/ |
140) |
= |
-2.62857142 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Paradise Elementary
|
-22 |
2017
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
92846 |
2471 |
- |
2436 |
= |
35 |
* |
(26 |
/ |
137) |
= |
6.64233574 |
4 |
92847 |
2494 |
- |
2485 |
= |
9 |
* |
(20 |
/ |
137) |
= |
1.31386861 |
5 |
92850 |
2508 |
- |
2528 |
= |
-20 |
* |
(24 |
/ |
137) |
= |
-3.50364962 |
6 |
92851 |
2488 |
- |
2552 |
= |
-64 |
* |
(28 |
/ |
137) |
= |
-13.08029197 |
7 |
92854 |
2559 |
- |
2567 |
= |
-8 |
* |
(21 |
/ |
137) |
= |
-1.22627737 |
8 |
92856 |
2592 |
- |
2586 |
= |
6 |
* |
(18 |
/ |
137) |
= |
0.78832117 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Paradise Elementary
|
-9 |
2018
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
93045 |
2514 |
- |
2436 |
= |
78 |
* |
(17 |
/ |
125) |
= |
10.608 |
4 |
93046 |
2521 |
- |
2485 |
= |
36 |
* |
(24 |
/ |
125) |
= |
6.912 |
5 |
93049 |
2548 |
- |
2528 |
= |
20 |
* |
(16 |
/ |
125) |
= |
2.56 |
6 |
93050 |
2516 |
- |
2552 |
= |
-36 |
* |
(25 |
/ |
125) |
= |
-7.2 |
7 |
93053 |
2568 |
- |
2567 |
= |
1 |
* |
(23 |
/ |
125) |
= |
0.184 |
8 |
93054 |
2586 |
- |
2586 |
= |
0 |
* |
(20 |
/ |
125) |
= |
0.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Paradise Elementary
|
13 |
2019
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
93706 |
2471 |
- |
2436 |
= |
35 |
* |
(21 |
/ |
129) |
= |
5.6976744 |
4 |
93707 |
2552 |
- |
2485 |
= |
67 |
* |
(17 |
/ |
129) |
= |
8.82945732 |
5 |
93708 |
2548 |
- |
2528 |
= |
20 |
* |
(26 |
/ |
129) |
= |
4.03100774 |
6 |
93709 |
2564 |
- |
2552 |
= |
12 |
* |
(18 |
/ |
129) |
= |
1.6744186 |
7 |
93710 |
2570 |
- |
2567 |
= |
3 |
* |
(22 |
/ |
129) |
= |
0.51162791 |
8 |
93711 |
2630 |
- |
2586 |
= |
44 |
* |
(25 |
/ |
129) |
= |
8.52713176 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Paradise Elementary
|
29 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-22
|
-22
|
-9
|
13
|
29
|
-11.0 |
-2.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 63.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -68.2
For the lines, you have the data necessary to plot the chart.